Extension handle assembly



Nov. 18, 1941. A. LEE

' EXTENSION HANDLE ASSEMBLY Filed June 20, 1940 Patented Nov. 18, 1941UNITED STATES PATENT OFFICE EXTENSION HANDLE ASSEMBLY Albert Lee,Scranton, Pa. Application nine 20, 1940, s rial 541,554

'3 Claims. (o1.-s1 -17 7:)

This invention relates to an improved extension handle assembly forsocket wrenches and especially to an extension handle for use withsocket wrenches for removing wheel retaining nuts on large trucks andbuses where it is necessary to tighten the nuts to such an extent thatit is practically impossible to remove them with a conventional socketwrench handle;

More particularly, it is an aimof this inven: tion to provide anextension handle havingan open end to receive a socket wrench handle andadapted to afford additional leverage for more readily turning thesocket wrench. 7

Still another aim of the invention is to pro vide an extension handleformed of detachable sections, including a large and small sectionhaving connecting means so designed that the smaller sectiontogetherwith the socket wrenc-h and its handle may be nested andcontained within the larger section to enable the socket wrenchandextension handle to be compactly stored and retained as a unit sothat all of the ,parts will be available for use when required.

Other objects and advantages of the invention will hereinafter becomemore fully apparent from the following description of thedrawing, whichillustrates a preferred embodiment thereof, and wherein:

Figure l is a side elevational view showing the extension handleassembled for use and applied to the handle of a conventional socketwrench,

Figure 2 is an enlarged longitudinal central sectional view showing thesections of the extension handle nested and containing the socket wrenchand socket wrench handle, and

Figure 3 is an enlarged fragmentary longitudinal central sectional view,partly in elevation of the parts as seen in Figure 1.

Referring more particularly to the drawing, wherein like referencecharacters designate like or corresponding parts throughout thedifferent views, Ii) designates generally a conventional socket wrenchhaving a shank portion ll provided with enlarged ends l2 and I3 ofdifferent diameters and containing polygonal shaped recesses l4 and 15,respectively, of different sizes for engaging nuts and bolt heads, notshown, of two sizes. The enlarged ends l2 and 13 are each provided witha corresponding transverse opening I6 to receive a rod I1, forming thehandle of the socket wrench l0, and which is provided with an enlargedfiat end l8. The opposite end of the rod I! may be inserted in either'of the openings l and the rod moved therethrough until the end l8engages an end of one of the openings I6. The aforementioned partsforming the socket wrench l0 :are shown and described for the purpose ofillustrating the application of the extension handle L9 comprising thisinvention.

The extension handle .I 9 is of tubular construction and includestubular sections 2!) and .2l, the latter of which is substantiallysmaller in .diame.- ter and shorter in length than vthe fo i l er, for apurpose which will hereinafter become apparent. The sections -20 and, 21are provided with the .ext rnally't ea ed end and 2. espe ivel Acoupling member 24 is provided with ,a here which extends longitudinallytherethrough and which is provided with internally threaded ends 25 and26 .of different diameters, as best seen in Figure 3, toreceive -,theends 22 and 22,3, respectively, to connect the sections 20 and 2| .inend to end'relationship, as illustrated in Figures 1 and 3. The Oppositeend of the ltubular section 20 is provided with an enlarged socket 21hay.- ing aninternally threaded free end .28 forreceivm a threaded plug2.9 which closes .said end.

It will thus be ,seen that the parts when as.-

sembled, as illustrated in Figures 1 and ,3"w,il l

,form an extension handle which may be readily applied to the handle IIwhen said handle ,1] is connected to one of the openings 1.6, in ,themanner as s en inFigures 1 ,and 3, byp sin the tree end of the tubularsection 2| over the eX- tended end of the handle or rod vI 'I to Iorm anextension thereof to enable the wrench 10 to be more readily turned forloosening a nut or bolt.

All of the parts as seen in Figure 1 may be readily stored in thetubular section 20, in the manner as illustrated in Figure 2. This isaccomplished by detaching the rod or handle I! from the member I I. Thesections 2| and 20 are then detached from the coupling member 24 afterwhich the section 2| is inserted through the enlarged end of thecoupling member 24 and its threaded end 23, in this position, connectedto the threaded portion 26. The smaller end of rod I7 is then insertedinto the free end of the tubular section 2|. The flattened end 18 beingwider than the bore of section 2| will prevent the rod I! from passingtherethrough and thereby prevent its removal through the opposite end ofsection 2|. The tubular section 2| is then inserted into the end of thetubular section 20 which is provided with the threads 22. The threadedportion 25 of the coupling member 24 is then connected to the threadedend 22 to thereby mount the tubular section 2| and the rod I! in one endof the tubular section 20. The plug 29 is then removed and the headedend l3 of the shank H is then inserted into the socket end 21 of thetube 20. End I3 is of a diameter less than that of the tube 20 while theend I2 is of greater diameter than tube 2% and of a smaller diameterthan the socket 21 so that it will fit therein with the end l3 abuttingagainst the flattened end l8 of rod H. The plug 29 is then replaced inthe socket 21 to combine with the coupling member 24 to retain theremaining parts within the tubular section 20. By removing the plug 29and the coupling member 24 the remaining parts disclosed may be readilyremoved from the tubular section 20 after which rod H may beremoved fromtubular section 2! and the section "2 inn connected from coupling member24.

Various modifications and changes are contemplated and may obviously'beresorted to as only a preferred embodiment of the invention has beenillustrated and described.

I'claim as my invention:

'1. An extension handle assembly for socket wrenches comprising a handleincluding two pipe sections, one of said pipe sections having anexternally threaded end and an enlarged internally threaded end, theother pipe section being of a substantially smaller diameter, than thefirst mentioned pipe section and having an externally threaded end, acoupling member having threaded ends of different diameters for engagingthe I externally threaded ends of said pipe sections'for connecting themin end to end or in a nested relationship, and the open free end ofthesmaller pipe section being adapted to engage a rod,'forming thehandle portion of a socket wrench; when the pipe sections are connectedin end to end relationship, to form an extension for said handleportion, said rod being of less diameter than said second pipe sectionso as to nest therein and having a flattened end of a width greater thanthe diameter of the bore of the second pipe section to prevent the rodfrom being removed from the nested sectionsv through the smalleripipesec- 'tion,,and a threaded member forengaging the internallythreaded end "of the first mentioned pipe section to close said endagainst removal of the rod. p V

2. A socket wrench comprising a' polygonal shaped socket member forengaging nuts and bolt heads, provided with a transverse opening, a rod,insertable'through said opening, provided with an enlarged end forengaging a portion of the socket member at an end of said opening, theopposite end of said rod forming a handle for the socket member, anextension handle including tubular sections of difierent diameters,means for connecting said sections in end to end relationship or innested relationship, one Within the other, said rod being of a diameterless than the bore of the inner tubular section and its enlarged headbeing of a diameter greater than the bore of th inner tubular sectionand smaller than the bore of the outer tubular section whereby the rodcan be nested in said inner tubular section with its enlarged headdisposed at the inner end thereof to prevent said rod from movingoutwardly through the inner section, said .outer tubular section beingof a length approximately equal to the combined lengths of theinner'tubular section and the socket member, said socket member beingnested in the opposite end of the outertubular section, and a closuremember for the last mentioned end of the outer tubular section forretaining said socket member and rod therein. 7 i i v 3. Anextension-handle assembly including a tubular handle formed of tubularsections of different diameters, each of said sections having anexternally threaded end, a coupling member having a bore extendingtherethrough provided with ends of different diameters, said ends eachbeing internally threaded for engaging the externally threaded endsofsaid tubular sections for detachably connecting them in end to end-relationshiprelatively to each other or in nested relationship onewithin the other, the free end of the smaller tubularsecticn-beingadapted toengage'thefree end of a detachable handle'of asocket wrench to' form an extension for 1 said handle'when the sectionsare extended, and the larger tubular section being of suiiicient lengthto permit the smaller tubular section, said handle and socket wrench tobe positioned in; the larger tubular section for storage, when thesections are nested, said handle being adapted to be disposed in theinner end of the smaller section and being provided with an enlarged endto'prevent passage of the handle outwardly therethrough, and means forclosing the opposite end ofthe'larger tubular section;

ALBERT'L'EE;

